Caster support



FIG. 1 is a bottom perspective view of a caster support showing my new design;

FIG. 2 is a left side view of the invention.

FIG. 3 is a back view of the invention

FIG. 4 is a front view of the invention

FIG. 5 is a top view of the invention; and,

FIG. 6 is a bottom view of the invention.

The broken lines shown in FIGS. 1-4 are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for caster support, as shown and described. 